Ballet dancers are no strangers to aches and pains. Because we know our bodies so well, we sometimes fall into the dangerous habit of self-diagnosing. A new free app, HealthTap, lets us refer our health questions to knowledgeable physicians. Over 32,000 licensed medical professionals weigh in on all sorts of questions to help spread much-needed accurate medical knowledge. Dancers have already started to take advantage of the application, asking questions about bunions, foot spasms and toenail bruising. So next time you leave ballet class with a swollen ankle or a pain in your knee, don’t just brush it aside: Get out your iPhone, iPad or Android!